As Canon is running out of the free names I belive they gonna come up with a revolutionary sensor that has 16EV and it will be used in all new dslr-s so the modles will be named Canon HDR-1, Canon HDR-70... ;-)

But still, 4 in Chinese / Japanese is 四, 'sì' in Mandarin. Death is 死, 'sǐ'.

They've just proven that there will be no G13 or G14 (14, 十四, 'shī sì', sounds like 尸死, 'shī sǐ', 'dead corpse', 逝 shì means die, 弑 shì means 'murder a superior' (yes, I just went through my dictionary and found them)).

While I do doubt that they will use 4 because they want to protect sales from superstitious customers, it's worth mentioning a couple things. For one, while 4 is "shi", in Japanese it can also be read "yon", which lacks the same connotation. Two, even when read as "shi", 4D becomes シディー ("shidii"), which is incredibly close in pronunciation to シーディー ("CD"). Admittedly, naming a camera EOS CD might be even more confusing than 3D, but pick your poison.

As for the screenshot, to me it looks like an upside-down shime (〆), which by itself doesn't mean much.

Chances are - it's a screenshot of a development prototype of the app. It may have had the working name of "4D" and been changed to 6D for release.Either way, it requires a WiFi connection (which only the 6D has as a built-in feature) - so I think that's the situation.

I will take your theory and put on my tinfoil hat...

/conspiracy mode on

What if this was all just a big ruse to get people talking about the app? I mean its not hard to replace details such as the number in a video, just takes a few mins in after effects. Or better still the company that made the app purposely put the name 4D in there for another camera then took the video knowing full well that it would raise interest on the net and get people talking about their app.

Because lets face it, before this mystery screen grab/video how many people knew about this app? and how many MORE know about it now?

you decide

/tinfoil hat mode off

But all seriousness i don't know why the new camera couldn't be a 2D. especially if they were to double their current highest MP number. So suddenly we have the new canon 2D 2x the MP* of the Canon 5Dmk3 (*=48MP) .

If canon wrote it, then ok, it's more believable.But still, 4 in Chinese / Japanese is 四, 'sì' in Mandarin. Death is 死, 'sǐ'.

They've just proven that there will be no G13 or G14 (14, 十四, 'shī sì', sounds like 尸死, 'shī sǐ', 'dead corpse', 逝 shì means die, 弑 shì means 'murder a superior' (yes, I just went through my dictionary and found them)).

In short, they're a superstitious bunch (or at least, they acknowledge that their customers are), there will never be an EOS 4D.I'm guessing that some other guy wrote the app, and it's a typo, he really meant to write '3D', which will be the kick-ass high-MP camera we're all waiting for

YES YES! Most of us Chinese do not like even hate the number 4 'cause it is pronounced as “si”, which means DEATH. Numbers for vehicles contain 4 are mostly disliked. The “4D” pronounced as “死滴" which means the deaths. We prefer number 8 as it sounds like “發", which means big money will hit you! If Canon releases EOS 888D, it will be very good for China marketing.

Do you think it is possible that the 6D was original going to be named the 4D. As a step below the 5D.The demo could of been shot with the 4D name and Canon decided to name it the 6D.

It was always going to be the 6D if naming convention is followed

1D Pro Journalist style2-4D Needs to be better than the 5D but different market to the 1D (and we have already ruled out the 3D) think High MP Studio camera5D Pro Landscape/Video6D Less than a 5D7D Pro Crop Camera8-9D Less than a 7D somehow??

The only other thing that it could have been would have been a 70D but obviously Canon decided against that idea.